I've heard lots about podcasts, especially since I am an MPR listener, but haven't ever listened to one until this assignment. I have an old computer at home, with dial-up, so at least for now am not able to do much. I enjoyed learning about this Thing and set up an RSS feed to NPR's Science Friday near the bottom of my blog.
I was able to access several podcasts on my computer at work, except for a couple from MPR which seemed to require software we don't have.
I think this would be a useful addition to a library's website. Any presentations, meetings, classes, etc. could be recorded and podcast, though I don't know if my library has the software yet to do so. Duluth's new mayor, Don Ness, is using this technology to broadcast his city addresses. It should be interesting to see how people respond to this 21st century adaptation.